Knife



FIG. 1 is a perspective view of a knife showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a sectional view taken on the line of VII--VII of FIG. 2. 

The ornamental design for a knife, as shown. 